Detachable sole and heel



1935. E. M. DIGNAN ,988,485

DETACHABLE SOLE AND HEEL Filed Aug. 9, 1935 A TTaE/VEKS "rothis end and in accordance with this inven Patented Jan. 22, 1935 [983,485 v DE ACHAB'IEE screw ng ErnestMyers.Dignanahondon; assignon I l of one-half to-Percival Glen Lawson-Johnston,

' London, England.

Application Augustlhlli snf-Ntijttiaio- In-Gre'at Britain March- 3,1932

' seein (or 3 9m plateadapted to overlap he-frame betweerf t This invention relates to soles and heels for boats and sheesand hasfor its object to enable a-worn sole or heel' very easily and cheaply to:

be replaced without skilled labour;

tion the improved soleor heelcomprises a frame; the external outline of which is shaped suitably, which is formed. with an aperture or apertures at orabout its" central part, the margin of each such aperture being notched to receive the necks of studs or pads of India rubber or the like, and which is formed at that face which is to be contiguous with the sole or heel of the boot or shoe with a distance piece constituted by a marginal rib or by undercutting the edges of the notches, whilst a plate is adapted to be secured in or over each aperture, so as to retain in position the studs or pads, the flanged inner ends of which lie within the space afforded by the distance piece on the frame. a

The pads to be secured in this manner may be formed with outer heads so shaped that when assembled in position they constitute together a complete or substantially complete sole or heel.

In some cases, however, e. g. where separated studs are desired the margin of the plate may be notched, its notches being complementary to those in said frame, and the plate fitting as closely as possible the aperture in the frame, alternatively, the plate may be so shaped that the tongues lying between the notches are adapted to extend over the corresponding parts of the frame.

The frame may be made of metal, hard India rubber, leather or other suitable material and may be secured to the sole or heel of a boot or shoe by screws or the like. After the frame has been so secured, the pads or studs are slidden into position in the respective notches, their flanged inner ends lying in the space afforded by the distance piece on said frame, after which the plate is applied and secured by a central screw. In the event of wear, the plate is removed, any worn pad or stud is removed'and a new one substituted, after which the plate is replaced-an operation for which no skilled labour is required.

If the assemblage of studs is to constitute a complete or substantially complete sole or heel, the plate may be constituted by a mere disc of similar material which fills up the central space which must be left to permit the sliding of the necks of the pads into and out of the respective notches. Similarly where separated studs are desired, the plate may be arranged completely to fill the residual space but without projecting so far as the outer ends of the studs or it may be a metal st-uds i'. e. amere'co'ver plate, parts of th of' which are notched lto enact with tile-stu s hold them in positiorf and at t same--time circlude dirt from the space within he1f1ame.

The inner ends-of the studsor pa i's may'fbe; flanged or they may: be forme'd"withdovetaile'df projections; the ncrease ifl. "tfi 4 f me be' g'fl formed correspondinglyandcas s 'where 'the pads constitute substantially the complete sole or heel, the plate may be bevelled or rabbetted at its edges partly to overlie the contiguous edges of the pads. v

I In the accompanying drawing Figure 1 is an inverted plan of one form of boot heel made in accordance with this invention, part being broken away for the sake of clearness. Figure 2 is a fragmentary section as on the line 2-2 Figure 1, Figure .3 is a fragmentary section of a modified detail, Figure 4 is aninverted plan of a modified form of boot heel with one stud omitted; Figure 5 is a fragmentary section on the line 5-5 Figure 4, whilst Figure 6 is a fragmentary section of a detail.

As shown in Figures 1 and 2 a suitably shaped plate a. is secured to the main body b of a boot heel by means of screws such as c, said plate a being apertured centrally and formed with slots 01 undercut as at e into each slot 113 is slidden the neck I of a pad 9 a flanged part It on said neck passing into the undercut part e. The pads g together constitute the greater part of the surface of the heel and after they have been slidden into position a central plate or pad 7' completes the surface and prevents movement of the pads g the pad 7' is secured by a central screw 70.

Figure 3 illustrates a modification in which the pad 9 is formed with a dovetailed projection m instead of a neck 1 and flanged part h, the projection m meshing with a dovetail 8.

Figures 4 and 5 show a further modification in which the pads g .are replaced by studs n and the pad 9' by a notched plate 0 the notches of which are complementary to those of the plate a.

In some cases the pad 7' may be bevelled or 'rabbetted at its edge partly to overlie the con-f tiguous edges of the pads g whilst, if desired, the edges of the plate 0 between its notches may overlie the corresponding parts of the plate a.

Figure 6 shows how a plate p having a hooked end q may be arranged to slide in the main body b to engage a perforated lug r on the pad 7' to retain the latter in position, the pad :1 having a dovetailed projection m which is similar to the projection m (Fig; 3) and which meshes with a dovetail s similar to the dovetail s.

I claim:-

1. A wearing surface for a sole or heel, comprising a frame adapted to be secured thereto and formed-with a distance piece, said frame having a substantially central aperture, the edge of said aperture being formed with notches, pads flanged at their inner ends and having necks adapted to be received by said notches, the flanged inner ends of said pads lying within the space afforded by inner ends of said pads lying within the space afforded by said distance piece, and a plate registering substantially with said aperture and 1 adapted to be secured to a sole wheel and to maintain said pads in position, said :pads when assembled imposition together constituting a complete wearing surface.

3. A wearing surface for a sole or heel as claimed in claim 1 wherein the edge of the plate is formed with notches complementary to those in the frame.

4. A wearing surface for a sole or heel, comprising a frame adapted to be secured thereto and formed with a distance piece constituted by a marginal rib, said frame having a substantially central aperture, the edge of said aperture being formed with notches, pads flanged at their inner ends and having necks adapted tobe received by said notches, the flanged inner ends of said pads lying within the space afforded by said distance piece, and a plate registering substantially with said aperture and adapted to be secured to a sole or heel and to maintain said pads in position. r

5. A wearing surface for a sole or heel, comprising a frame adapted to be secured thereto and having a substantially central aperture, the edge of said aperture being formed with undercut notches, pads flanged at their inner ends and having necks adapted to be received by said notches,- the flanged inner ends of said pads being received in the undercut parts of said notches, and a plate registering substantially with said aperture and adapted to be secured to a sole or heel and to maintain said pads in position.

ERNEST MYERS DIGNAN. 

